– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 4 am Mon 24 Aug Local TimeUpdates in: hr min sUpdate imminent
Issued: 4 am Mon 24 Aug Local Time
Updates in:
Update imminent hr min s
Issued: 4 am Mon 24 Aug Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–3 Weather SummaryMostly dry. Warm (max 29°C on Tue afternoon, min 14°C on Wed night). Wind will be generally light. | Days 4–6 Weather SummaryModerate rain (total 17mm), heaviest on Sat morning. Very mild (max 17°C on Thu afternoon, min 10°C on Sat morning). Wind will be generally light. | |||||||||||||||||
Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 | |  | | | | | |  |  | |  |  | | |  | | | |
clear | clear | clear | clear | clear | clear | clear | clear | some clouds | rain shwrs | rain shwrs | rain shwrs | light rain | rain shwrs | rain shwrs | mod. rain | rain shwrs | rain shwrs | |
Cloud base (m) | 9150 | 4750 | 9550 | 800 | 900 | 800 | 850 | 2000 | 600 | 650 | 1600 | |||||||
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
mm | — | — | — | — | — | — | — | — | — | 1 | 2 | 0.3 | 0.1 | 1.6 | 3 | 6 | 1.8 | 0.1 |
max °C | 22 | 26 | 22 | 27 | 29 | 22 | 21 | 23 | 18 | 14 | 17 | 15 | 13 | 14 | 13 | 10 | 11 | 11 |
min °C | 16 | 26 | 21 | 23 | 28 | 18 | 19 | 23 | 14 | 14 | 15 | 12 | 12 | 14 | 11 | 10 | 10 | 10 |
chill °C | 16 | 26 | 21 | 23 | 28 | 18 | 19 | 23 | 14 | 14 | 15 | 12 | 12 | 14 | 11 | 10 | 10 | 10 |
Freezing level m | 4000 | 4100 | 4050 | 4100 | 4200 | 4100 | 4000 | 3900 | 3300 | 2750 | 2850 | 3050 | 2700 | 2650 | 2450 | 2200 | 2300 | 2350 |
 | 6:13 | — | — | 6:13 | — | — | 6:15 | — | — | 6:16 | — | — | 6:18 | — | — | 6:20 | — | — |
 | — | — | 8:06 | — | — | 8:04 | — | — | 8:01 | — | — | 8:00 | — | 7:58 | — | — | 7:55 | — |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: Mostly dry. Warm (max 29°C on Tue afternoon, min 14°C on Wed night). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
Moderate rain (total 17mm), heaviest on Sat morning. Very mild (max 17°C on Thu afternoon, min 10°C on Sat morning). Wind will be generally light.
This table gives the weather forecast for South Twin Sister at the specific elevation of 500 m. Our advanced weather models allow us to provide distinct weather forecasts for several elevations of South Twin Sister. To see the weather forecasts for the other elevations, use the tab navigation above the table. For a wider overview of the weather, consult the Weather Map of Washington.